CN102826554A - Method for preparing refined quartz sand by washing - Google Patents
Method for preparing refined quartz sand by washing Download PDFInfo
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- CN102826554A CN102826554A CN2012103420674A CN201210342067A CN102826554A CN 102826554 A CN102826554 A CN 102826554A CN 2012103420674 A CN2012103420674 A CN 2012103420674A CN 201210342067 A CN201210342067 A CN 201210342067A CN 102826554 A CN102826554 A CN 102826554A
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- silica sand
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Abstract
The invention provides a method for preparing refined quartz sand by washing; and the method comprises the following steps that (1) a processing step is carried out: a quartz stone ore material is processed by a stone breaking machine into coarse broken stone with the lengths being 3cm to 50cm; (2) stone is rolled into sand: the coarse broken stone is rolled into sand, water is added in continuously when the stone is rolled, and the ratio (weight percentage) of the water to the sand is equal to 2:1; (3) a sedimentation step is carried out: the water flows into a sedimentation tank together with the sand, and the sedimentation time is more than four hours; after the sand is fully settled, the water on the surface of the settled sand flows away; (4) a baking step is carried out: the settled sand is moved into a bakery to be baked, the baking time is 2 hours to 3 hours, dry sand is formed, taken out and cooled down to room temperature; and (5) a screening step is carried out: a vibration sieve is used for screening, and fine sand finished products are obtained. The quartz sand which is prepared through the method for preparing refined quartz sand by washing is not graded, and due to the adoption of a closed-loop circulating system for processing, manpower and raw materials are saved, the white content is high, no impurity exists, and the iron content is low.
Description
Technical field
The present invention relates to a kind of silica sand production field, particularly a kind of method of producing refining silica sand of washing.
Background technology
Silica sand is a kind of oyster white or colourless translucent nonmetallic mineral, and hardness 7 is silicate mineralss of a kind of hard, wear-resisting, stable chemical performance, and its essential mineral composition is SiO2.Silica sand is important industrial mineral raw material, and non-chemically hazardous substance are widely used in industry such as glass, casting, pottery and refractory materials, smelting duriron, flux for metallurgy, metallurgy, building, chemical industry, plastics, rubber, abrasive material.Exist with quartzose sandstone, quartzite and vein quartz at occurring in nature.Quartzose sandstone is fixed chip rock, and quartzy chip content reaches more than 95%, derives from various magmatite, sedimentogeneous rock and metamorphosed rock, and heavy mineral is less, and associated mineral is feldspar, mica and clay mineral.
What adopt mostly at present is dry production silica sand; Its technical process is machined to less building stones for the quartzite mineral aggregate through knocking stone, and building stones through kibbler processing sand grains, pass through bolting more then; In screening process, utilize bar magnet and row's magnet deironing, then the packing warehouse-in that finishes.
The silica sand of dry production is divided into common silica sand, half refining silica sand, refining three kinds of grades of silica sand.When exploiting from the mountain, itself have filemot epidermis because of the quartzite mineral aggregate.
Pick out the product of the less direct crushing and screening of quartzite mineral aggregate and claim common silica sand, the apparent tawny that appears is alternate with white, and its advantage is a low price, and shortcoming is that impurity is more, so be used for building trade more.
Pick out big mineral aggregate, through artificial removal surface tawny crust, what reprocessing formed has been exactly refining silica sand, and its apparent white that appears is glittering, and is the same as white sugar.Take material because of the course of processing is time-consuming, so price is higher.
Summary of the invention
The present invention proposes a kind of method of producing refining silica sand of washing, and has solved the problem of more, the time-consuming expense material of impurity in the prior art.
Technical scheme of the present invention is achieved in that
The invention discloses a kind of method of producing refining silica sand of washing, comprise the steps:
S1. processing: the quartzite mineral aggregate is machined to the building stones that length is the coarse crushing of 3～50 cm through knocking stone;
S2. sand grainsization: the building stones of coarse crushing are rolled into sand grains, constantly add water when rolling, the ratio of the water yield and sand grains (weight percent)=2:1;
S3. precipitate: the water band sand grains and is flowed into settling tank, and the ST is more than 4 hours; Treat that sand precipitates fully, the water on the sand setting surface that flows away;
S4. baking: sand setting is transported into barn toasts, storing time is 2～3 hours, forms dry sand, takes out, and is cooled to room temperature;
S5. screening: utilize bolting, obtain the fine sand finished product.
As further improvement of the present invention, process among the described step S1, further comprise:
S11. be the quartzite of 3～50CM with length, send hammer mill through feed bin equably to by oscillating feeder and carry out coarse crushing;
S12. the quartzite after the coarse crushing is delivered to system sand machine by rotary conveyor and is carried out further fragmentation;
S13. the silica sand after in small, broken bits is sent vibratory screening apparatus to by rotary conveyor and is sieved; Sieve out the quartzite of several kinds of different sizes, different size; The quartzite that satisfies granularity requirements is sent among the step S2 by the finished belt transfer roller carry out sand grainsization; The silica sand that does not satisfy granularity requirements is delivered to system sand machine by the rotary conveyor returning charge and is carried out once more brokenly, forms and closed circuitly repeatedly circulates.
As further improvement of the present invention, described step S5 also is included in and utilizes bar magnet and magnet deironing in the screening process, the packing warehouse-in that finishes.
As further improvement of the present invention, the procedure of processing of step S1 also is included in the course of processing the dust separating step of the building stones of coarse crushing.
As further improvement of the present invention, the screening step of step S5 also is included in the course of processing the dust separating step of fine sand finished product.
A kind of method of producing refining silica sand of washing of embodiment of the present invention has following beneficial technical effects:
The silica sand that water law is produced is compared with dry method silica sand, produces silica sand and is regardless of grade, and water law silica sand is because of in production process; Less generation equipment iron and water wash away impurity; All be less than dry method silica sand like iron-holder and impurity, adopt closed circuit circulatory system because of its processing and practice thrift artificial raw material, because of it possesses the whiteness height; Characteristics such as inclusion-free, iron amount are low are so have wide range of applications.
Embodiment
To carry out clear, intactly description to the technical scheme in the embodiment of the invention below, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
Embodiment 1, and a kind of method of producing refining silica sand of washing comprises
S1. processing: the quartzite mineral aggregate is machined to the building stones that length is the coarse crushing of 5cm through knocking stone;
S2. sand grainsization: the building stones of coarse crushing are rolled into sand grains, constantly add water when rolling, the ratio of the water yield and sand grains (weight percent)=2:1;
S3. precipitate: the water band sand grains and is flowed into settling tank, and the ST is 7 hours; Treat that sand precipitates fully, the water on the sand setting surface that flows away;
S4. baking: sand setting is transported into barn toasts, storing time is 2 hours, forms dry sand, takes out, and is cooled to room temperature;
S5. screening: utilize bolting, obtain the fine sand finished product.
Further, process among the described step S1, further comprise:
S11. with the building stones after the processing among the step S1, send hammer mill through feed bin equably to by oscillating feeder and carry out coarse crushing;
S12. the quartzite after the coarse crushing is delivered to system sand machine by rotary conveyor and is carried out further fragmentation;
S13. the silica sand after in small, broken bits is sent vibratory screening apparatus to by rotary conveyor and is sieved; Sieve out the quartzite of several kinds of different sizes, different size; The quartzite that satisfies granularity requirements is sent among the step S2 by the finished belt transfer roller carry out sand grainsization; The silica sand that does not satisfy granularity requirements is delivered to system sand machine by the rotary conveyor returning charge and is carried out once more brokenly, forms and closed circuitly repeatedly circulates.
Further, described step S5 also is included in and utilizes bar magnet and magnet deironing in the screening process, the packing warehouse-in that finishes.
Further, the procedure of processing of step S1 also is included in the course of processing the dust separating step of the building stones of coarse crushing.
Further, the screening step of step S5 also is included in the course of processing the dust separating step of fine sand finished product.
Embodiment 2, a kind of method of producing refining silica sand of washing, and identical with embodiment 1 step major part, difference is: step S1 is: the quartzite mineral aggregate is machined to the building stones that length is the coarse crushing of 25cm through knocking stone;
Step S3. deposition: the water band sand grains and is flowed into settling tank, and the ST is 4 hours; Treat that sand precipitates fully, the water on the sand setting surface that flows away;
S4. baking: sand setting is transported into barn toasts, storing time is 3 hours, forms dry sand, takes out, and is cooled to room temperature.
Embodiment 3, a kind of method of producing refining silica sand of washing, and identical with embodiment 1 step major part, difference is: step S1 is: the quartzite mineral aggregate is machined to the building stones that length is the coarse crushing of 50cm through knocking stone;
Step S3. deposition: the water band sand grains and is flowed into settling tank, and the ST is 8 hours; Treat that sand precipitates fully, the water on the sand setting surface that flows away;
S4. baking: sand setting is transported into barn toasts, storing time is 2.5 hours, forms dry sand, takes out, and is cooled to room temperature.
Generally speaking, water law is produced silica sand, and its technical process is roughly following: the quartzite mineral aggregate is machined to less building stones through knocking stone; Building stones are rolled into sand grains through stone again, and that does not stop when rolling adds water, and the water band in the sand grains inflow settling tank; Be transported into barn to the sand grains in the settling tank again and be baked into the dry sand grain; And then through bolting, in screening process, utilize bar magnet and the deironing of row's magnet, the packing warehouse-in that finishes then.
The quartzite of bulk (3-50CM) is sent one broken (hammer mill) through feed bin equably to by oscillating feeder and is carried out coarse crushing, and the quartzite after the coarse crushing is delivered to system sand machine by rotary conveyor and carried out further fragmentation; Silica sand after in small, broken bits is sent vibratory screening apparatus to by rotary conveyor and is sieved, and sieves out the quartzite of several kinds of different sizes, different size, and the quartzite that satisfies granularity requirements is sent to sand washer by the finished belt transfer roller and carries out washing; The silica sand that does not satisfy granularity requirements is delivered to system sand machine by the rotary conveyor returning charge and is carried out once more brokenly, forms closed circuit repeatedly circulation, and the finished product granularity can make up according to user's demand and classification, is the protection environment, is equipped with auxiliary silica sand and processes dust removal installation.
A kind of method of producing refining silica sand of washing of embodiment of the present invention has following beneficial technical effects:
The silica sand that water law is produced is compared with dry method silica sand, produces silica sand and is regardless of grade, and water law silica sand is because of in production process; Less generation equipment iron and water wash away impurity; All be less than dry method silica sand like iron-holder and impurity, adopt closed circuit circulatory system because of its processing and practice thrift artificial raw material, because of it possesses the whiteness height; Characteristics such as inclusion-free, iron amount are low are so have wide range of applications.
The above is merely preferred embodiment of the present invention, and is in order to restriction the present invention, not all within spirit of the present invention and principle, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. wash the method for producing refining silica sand for one kind, it is characterized in that, comprise the steps:
S1. processing: the quartzite mineral aggregate is machined to the building stones that length is the coarse crushing of 3～50 cm through knocking stone;
S2. sand grainsization: the building stones of coarse crushing are rolled into sand grains, constantly add water when rolling, the ratio of the water yield and sand grains (weight percent)=2:1;
S3. precipitate: the water band sand grains and is flowed into settling tank, and the ST is more than 4 hours; Treat that sand precipitates fully, the water on the sand setting surface that flows away;
S4. baking: sand setting is transported into barn toasts, storing time is 2～3 hours, forms dry sand, takes out, and is cooled to room temperature;
S5. screening: utilize bolting, obtain the fine sand finished product.
2. the method for refining silica sand is produced in washing according to claim 1, it is characterized in that, processes among the described step S1, further comprises:
S11. be the quartzite of 3～50CM with length, send hammer mill through feed bin equably to by oscillating feeder and carry out coarse crushing;
S12. the quartzite after the coarse crushing is delivered to system sand machine by rotary conveyor and is carried out further fragmentation;
S13. the silica sand after in small, broken bits is sent vibratory screening apparatus to by rotary conveyor and is sieved; Sieve out the quartzite of several kinds of different sizes, different size; The quartzite that satisfies granularity requirements is sent among the step S2 by the finished belt transfer roller carry out sand grainsization; The silica sand that does not satisfy granularity requirements is delivered to system sand machine by the rotary conveyor returning charge and is carried out once more brokenly, forms and closed circuitly repeatedly circulates.
3. the method for refining silica sand is produced in washing according to claim 1, it is characterized in that described step S5 also is included in and utilizes bar magnet and magnet deironing in the screening process, the packing warehouse-in that finishes.
4. the method for refining silica sand is produced in washing according to claim 1 and 2, it is characterized in that the procedure of processing of step S1 also is included in the course of processing the dust separating step of the building stones of coarse crushing.
5. the method for refining silica sand is produced in washing according to claim 1 and 2, it is characterized in that the screening step of step S5 also is included in the course of processing the dust separating step of fine sand finished product.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012103420674A CN102826554A (en) | 2012-09-17 | 2012-09-17 | Method for preparing refined quartz sand by washing |
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| CN2012103420674A CN102826554A (en) | 2012-09-17 | 2012-09-17 | Method for preparing refined quartz sand by washing |
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| CN102826554A true CN102826554A (en) | 2012-12-19 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103084373A (en) * | 2013-01-11 | 2013-05-08 | 高志 | Granite tailing sand treatment method |
| CN103435284A (en) * | 2013-07-31 | 2013-12-11 | 李小福 | Sand making technology of sandstone |
| CN107486324A (en) * | 2017-09-30 | 2017-12-19 | 江苏闽江矿业有限公司 | A kind of quartz, which is sanded, selects technique |
| CN112410016A (en) * | 2020-10-22 | 2021-02-26 | 刘彬 | Quartz sand for fracturing propping agent and preparation method and application thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2003012319A (en) * | 2001-06-29 | 2003-01-15 | Univ Nihon | Method for obtaining silicic acid and silicon dioxide and method for recycling ceramic |
| CN1522957A (en) * | 2003-09-09 | 2004-08-25 | 湖州万能硅微粉厂 | Production method for ultra-fine silicon micronized quartz powder |
| CN101259963A (en) * | 2008-02-05 | 2008-09-10 | 锦州新世纪石英玻璃有限公司 | Method for producing solar energy stage polycrystalline silicon by using high-pure quartz sand as raw material |
| CN101733192A (en) * | 2009-12-21 | 2010-06-16 | 贵研铂业股份有限公司 | Method for purifying quartz sand ore by using physical method |
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2012
- 2012-09-17 CN CN2012103420674A patent/CN102826554A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003012319A (en) * | 2001-06-29 | 2003-01-15 | Univ Nihon | Method for obtaining silicic acid and silicon dioxide and method for recycling ceramic |
| CN1522957A (en) * | 2003-09-09 | 2004-08-25 | 湖州万能硅微粉厂 | Production method for ultra-fine silicon micronized quartz powder |
| CN101259963A (en) * | 2008-02-05 | 2008-09-10 | 锦州新世纪石英玻璃有限公司 | Method for producing solar energy stage polycrystalline silicon by using high-pure quartz sand as raw material |
| CN101733192A (en) * | 2009-12-21 | 2010-06-16 | 贵研铂业股份有限公司 | Method for purifying quartz sand ore by using physical method |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103084373A (en) * | 2013-01-11 | 2013-05-08 | 高志 | Granite tailing sand treatment method |
| CN103084373B (en) * | 2013-01-11 | 2015-04-15 | 高志 | Granite tailing sand treatment method |
| CN103435284A (en) * | 2013-07-31 | 2013-12-11 | 李小福 | Sand making technology of sandstone |
| CN103435284B (en) * | 2013-07-31 | 2015-01-21 | 李小福 | Sand making technology of sandstone |
| CN107486324A (en) * | 2017-09-30 | 2017-12-19 | 江苏闽江矿业有限公司 | A kind of quartz, which is sanded, selects technique |
| CN112410016A (en) * | 2020-10-22 | 2021-02-26 | 刘彬 | Quartz sand for fracturing propping agent and preparation method and application thereof |
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Application publication date: 20121219 |